is this an early hight compression 318 or a late low compression?
either way the Summit cam will cost you torque
low compression motor the 250 Voodoo is your best choice for a shelf cam the higher compression motor the 256
using stock gears and converter
post your true compression and we can slice the baloney finer
for example if you get 9.7 then 264
The summit cams are measured at ,004 and I'm specing .006 data cams, be sure you understand the implications
